How To Fix /STMC/CR_MSG770 - Error while converting data structure to JSON document

SAP Error Message - Details

• Message type: E = Error

• Message class: /STMC/CR_MSG -

• Message number: 770

• Message text: Error while converting data structure to JSON document

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /STMC/CR_MSG770 - Error while converting data structure to JSON document ?

  The SAP error message /STMC/CR_MSG770 indicates that there is an issue while converting a data structure to a JSON document. This error typically arises in the context of SAP applications that involve data serialization, particularly when working with APIs or services that require JSON format.
  Causes:
  
  Data Structure Issues: The data structure being converted may contain unsupported data types or formats that cannot be serialized into JSON.
  Null or Empty Values: The presence of null or empty values in the data structure can lead to conversion errors.
  Circular References: If the data structure contains circular references (where an object references itself), this can cause issues during serialization.
  Field Length Exceedance: Some fields may exceed the maximum length allowed for JSON serialization.
  Encoding Issues: Special characters or incorrect encoding in the data can lead to conversion failures.
  
  Solutions:
  
  Check Data Structure: Review the data structure being converted to ensure that all fields are supported for JSON serialization. Remove or modify any unsupported data types.
  Handle Null Values: Ensure that null or empty values are handled appropriately. You may need to provide default values or exclude such fields from the serialization process.
  Avoid Circular References: Refactor the data structure to eliminate any circular references that may exist.
  Field Length Validation: Validate the lengths of the fields in the data structure to ensure they do not exceed the limits for JSON serialization.
  Encoding Check: Ensure that the data is properly encoded and does not contain any special characters that could interfere with JSON formatting.
  Debugging: Use debugging tools or logs to trace the exact point of failure during the conversion process. This can provide insights into what specific data is causing the issue.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on data serialization and JSON handling.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and to find potential solutions.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to JSON serialization errors.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.